* Representation of Variant record
@ 1997-02-21 0:00 Ayman Farahat
1997-02-21 0:00 ` Robert Dewar
0 siblings, 1 reply; 2+ messages in thread
From: Ayman Farahat @ 1997-02-21 0:00 UTC (permalink / raw)
Hi,
How is a variant record implemented in Ada. I need to write a variant
record and then be able to read its contents and copy them into a C
union.
thanks
Ayman Farahat
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Representation of Variant record
1997-02-21 0:00 Representation of Variant record Ayman Farahat
@ 1997-02-21 0:00 ` Robert Dewar
0 siblings, 0 replies; 2+ messages in thread
From: Robert Dewar @ 1997-02-21 0:00 UTC (permalink / raw)
Ayman asks
<<How is a variant record implemented in Ada. I need to write a variant
record and then be able to read its contents and copy them into a C
union.>>
This is a misformed question. There is no general answer, you can only
ask how a variant record is implemented in a given implementation of
Ada on a particular machine with a particular operating system, not
in general for the ada language.
However, there is probably a nice answer for you, which is look up
pragma Unchecked_Union, it is *specifically* intended for interfacing
to C unions.
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1997-02-21 0:00 ` Robert Dewar
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